/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.rdfpatch.changes;

import org.apache.jena.rdfpatch.RDFChanges;

/** An {@link RDFChanges} that adds callbacks on start/finish. */
public class RDFChangesOnStartFinish extends RDFChangesWrapper {
    private Runnable onStart;
    private Runnable onFinish;

    public RDFChangesOnStartFinish(RDFChanges changes, Runnable onStart, Runnable onFinish) {
        super(changes);
        this.onStart = onStart;
        this.onFinish = onFinish;
    }

    @Override
    public void start() {
        if ( onStart != null )
            onStart.run();
    }

    @Override
    public void finish() {
        if ( onFinish != null )
            onFinish.run();
    }
}
